On: Stem cells shown safe, beneficial for chronic stro...

[marshray]

You've never worked in a specialist medical clinic.

Edit: not intended to sound ad hominem

[rhizome → marshray]

a) How do you know?

b) The phrase you're looking for is "argument from authority," which it is.

[marshray → rhizome]

a) I don't know, it was a guess from experience.

b) Sometimes people cry 'ad hominem' after any statement that refers to the debating party ('you') and I wanted to avoid that.